Vulnerability · CVE-2026-85231
libtirpc: libtirpc: Denial of service via unbounded memory allocation during RPCSEC_GSS decoding
Published Oct 16, 2026 · Red Hat Red Hat Enterprise Linux
Check if you run it
No confirmed exploitation is on record for CVE-2026-85231. EPSS is 0.30%. Act only if a listed version of Red Hat Red Hat Enterprise Linux is installed.
Gaps on this record
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Medium6.5
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.30%
- Remediation
- Vendor / distro source
- Affected products
- Red Hat Red Hat Enterprise Linux
libtirpc: libtirpc: Denial of service via unbounded memory allocation during RPCSEC_GSS decoding
No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.
How to fix CVE-2026-85231
Recommended remediation
A vendor or distribution source is linked. Check that advisory for patch availability; this catalog does not invent fix status.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-85231. EPSS is 0.30%. Act only if a listed version of Red Hat Red Hat Enterprise Linux is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-770: Allocation of Resources Without Limits or Throttling. EPSS 0.30%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 16, 2026 · Red Hat Security Data
Detected
libtirpc: libtirpc: Denial of service via unbounded memory allocation during RPCSEC_GSS decoding
Sources
- CVE.orgVulnerability recordCVE-2026-85231
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-85231
30-day exploitation probability 0.3%
first.org - Red Hat Security DataVendor advisoryCVE-2026-85231
libtirpc: libtirpc: Denial of service via unbounded memory allocation during RPCSEC_GSS decoding
access.redhat.com
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.